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Adventure Comics #320
Dev-Em arrives at Legion headquarters as a member of the Inter-Stellar Counter-Intelligence Corps on a mission to nab the elusive leader of the Cosmic Spy Legion, Morlock the Merciless.
Characters: Brainiac 5, Chameleon Boy, Dev-Em, Element Lad, Garth Ranzz, Jonathan Kent, Lana Lang, Martha Kent, Mon-El, Saturn Girl, Sun Boy, Superman
Creative roster
Curt Swan (Cover, Penciller)
George Klein (Cover)
George Papp (Artist)
Henry Boltinoff (Artist, Writer)
Jerry Siegel (Story)
John Forte (Penciller)
Mort Weisinger (Editor)
Otto Binder (Story)
Sheldon Moldoff (Inker)
Story DNA — may contain spoilers
Release timelines
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Rest of the series
Issue #1's with Shared Characters
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